Shutter-worker.



wantoz 2 SHEETS-SHEET 1.

A. M. BURNHAM.

SHUTTBR WORKER.

APPLIOATION FILED APB 21 1905 @MNM-aww No. 818,346. PATENTBD APR. 1'7, 1906. A. M. BURNHAM.

SHUTTERWORKER.

APPLICATION FILED APR. 21, 1905. i

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affomwg@ rrErTEn sTATEs PATENT oEEroE.

ARTHUR M. BURNHAM, OF GARDINER, MAlNE, ASSlGNOR OF ONE- HALF TO WM. GORDON CRAWFORD, OF WASHlNGTON, DlSTRlCT OF COLUMBIA.

j SHUTTER-WOFIKEFIl No. 818,346, Specification of Letters Patent. Patented April 17, 1906. Application filed April 21,1905. Serial No. 256,732.

shaft 14, which in turn is mounted the elon- 55 gated tube 9, said drum being provided with a suitable cord for operating it.

15 is the operating-arm for the shutter 5, one end being attached to said shutter and the opposite end being forked, ard the arms 6o 16 of said forks each provided with an opening 17, designed to receive the pins 18 of the block 19, which is mounted on a shaft 19", depending from the casing 7. Connection between the shaft 14 and the operating-arm 65 15 is made by means of a worm 19a, supported on shaft 19d and meshing with a wormwheel 19, said worm being rovided at one end with a journal 19", revolhbly supported in a bearing in the casing 7, and is made with 7o an angular, bore to receive the angular outer end of the shaft 14, said shaft being designed when rotated to transmit motion to the worm-wheel 19", shaft 19", and from said shaft 19b to the operating-arm 15. After the 7 5 pins 18 are inserted in the openings 17 in the arms 16 (see Fig. 4) the lugs 2O 21 on opposite sides of the said o enings are hammere or welded together, ce Fig. 5,) which securely retains said pins in place in said open- 8o ings. lt will be seen that by pivoting the arm 15 to the block 19 by means of the lpins 18 the perfect operation of the arm is insured regardless of the different arc the shutter may move owing to its becoming sagged or if 85 from any other cause it does not move concentric with the short shaft of the casing.

Having thus described my invention, what l claim is-- 1. A shutter-worker comprising a shaft 9o operatively connected to an arm designed to be connected to a shutter, a casing; having a hollow member integral therewith carrying the said shaft and provided with screwthreads, and a screw-threaded sleeve mount- 95 ed on and covering the end of said hollow member designed to clamp said hollow member to a window casing, substantially as shown and described.

'2. A shutter-worker comprising a shaft, a roo casing having a shaft therein operatively connected to the first-mentioned shaft and provided with a block rigidly fixed thereon, and an arm having forked ends pivoted to said block7 substantially as shown and de- 105 scribed.

3. A shutter-worker comprising a shaft, a casing having a shaft therein operatively T @ZZ whom. it may concern:

Be it known that l, ARTHUR M. BUENHAM, a citizen of the United States, and a resident of Crardiner7 in the county of Kennebec and State of Maine, have invented certain new and useful Improvements in Shutter-Workers, of which the following is a specification.

My invention relates to improvements in shutter-workers, and has for its object to proro vide a device which can be adjusted to window-casings of different thicknesses, which is simple, inexpensive, and easy to operateV and which is adapted to be firmly seated in the window-casings, the portion extending therethrough being cast in one piece.

lt further has for its object improved means for attaching the arm to the bracket.

The invention consists in the construction, combination, and arrangement of the several 2o parts, as hereinafter more fully described and claimed.

Referring to the drawings, Figure 1 is a view in elevation of my invention; Fig. 2, an enlarged detail view of the adjusting-sleeve;

Figs. 3, 4, and 5, enlarged detail views of the inner end of the operating-arm, and Fig. 6 a sectional view of the casing and the mechanism for connecting the shaft 14 with the operating-arm.

3o ln the drawings, in which like numerals of reference indicate like parts throughout the several views, 1 represents the outside window-cap, 2 ,the inside cap, and 3 the windowcasing, in wh'ch the ordinary sashes are mounted in any well-known manner. To the Window-casing'hinges 4 are secured,support ing an ordinary shutter 5.

6 represents the shutter-worker provided with a casing 7, having an extension 8, an

4o elongated tube 9, made in one piece with said extension 8 for the purpose of providing a rigid connection. The inner end of the elongated tube 9 is screw-threaded, as at 10, and is provided with an interiorly-screw-threaded sleeve 11 thereon for the purpose of extending the length of said tube to enable it to aci commodate window-casin gs ofvarying thicknesses. One end of the sleeve 11 has formed integrally thereon a nut 12 for the purpose of 5o affording means whereby a wrench may be a plied when it is desired to adjust said s eeve and also forms a journal and bearing for the operating-shaft of operating-gears. 13 is a double-grooved drum mounted on a connected to the frstfmentioned shaft and provided with a square block ri idly fixed thereon and an arm having forke neoted to said block, substantially as shown and described.

4. A shutter-Worker comprising a casing, having a hollow extension, with a tube at one end thereon, said tube provided with eXterior screw threads, an interiorly screwthreaded sleeve mounted on the screwthreads of the tube and having a hole at one end, a shaft passing t rough said extension,

tube, and hole in arm designed to be means for o eratively and arm an means for o substantially as shown In v vitness whereof the sleeve, an operating- I have here ll/Vitness:

IRWIN B. L JAMES K. P

rNToN, oLK.

pivoted to a shutter,

connecting said perating said shaft, and described unto set my 111g Witness.

shaft 15 

